{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical"], "input": "We conducted a systematic review exploring the effects of advertising of food and non - alcoholic drinks ( referred to as ' food ' throughout ) on food - related behaviour , attitudes and beliefs in adult populations ."}
{"Chemical": []}